wiring diagram

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drewster1978
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Currently Drives:: renault megan dynamique 2006

wiring diagram

Postby drewster1978 » Fri Jul 13, 2018 1:27 pm

Hi has anyone got a wiring diagram for the air con,for megane mrk 2 2006.....Need to sort this air con problem out the engine bay fuse is fine but no power to the compressor.

scooper1000
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Currently Drives:: 2006 Renault megane 1.5 DCi Maxim

Re: wiring diagram

Postby scooper1000 » Fri Jul 13, 2018 3:42 pm

Hi i believe the most probable answer is the Pressure Sensor this is behind the front bumper...a auto Electrican should be able to tell you....

drewster1978
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Currently Drives:: renault megan dynamique 2006

Re: wiring diagram

Postby drewster1978 » Fri Jul 13, 2018 5:12 pm

Pressure Sensor does have power going to it,machanic said engine bay fuse fine but just no power going to connector.Also the fan doesnt come on.

grandadbobby
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Currently Drives:: megan dynamique estate 1.9dci

Re: wiring diagram

Postby grandadbobby » Fri Jul 13, 2018 7:44 pm

Hi,
the pressure switch having power to it doesn't mean it's working.
If it's only 2 wires, just connect them together see if it works, if not, test the compressor direct to the battery see if it activates.
Bob.

drewster1978
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Posts: 97
Joined: Mon Mar 20, 2017 9:59 pm
Currently Drives:: renault megan dynamique 2006

Re: wiring diagram

Postby drewster1978 » Fri Jul 13, 2018 7:52 pm

grandadbobby wrote:Hi,
the pressure switch having power to it doesn't mean it's working.
If it's only 2 wires, just connect them together see if it works, if not, test the compressor direct to the battery see if it activates.
Bob.

hi bob thanks for helping ok so all i have to do is i connect a wire from battery to ac connector to see if the clutch engages.

drewster1978
Learner Driver
Posts: 97
Joined: Mon Mar 20, 2017 9:59 pm
Currently Drives:: renault megan dynamique 2006

Re: wiring diagram

Postby drewster1978 » Fri Jul 13, 2018 7:57 pm

grandadbobby wrote:Hi,
the pressure switch having power to it doesn't mean it's working.
If it's only 2 wires, just connect them together see if it works, if not, test the compressor direct to the battery see if it activates.
Bob.

does the pressure switch have the same power source as the connector to the compressor.

scooper1000
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Re: wiring diagram

Postby scooper1000 » Fri Jul 13, 2018 8:24 pm

Hi i have a wiring diagram
:-)
Last edited by scooper1000 on Fri Jul 13, 2018 8:35 pm, edited 1 time in total.

scooper1000
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Re: wiring diagram

Postby scooper1000 » Fri Jul 13, 2018 8:32 pm


drewster1978
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Posts: 97
Joined: Mon Mar 20, 2017 9:59 pm
Currently Drives:: renault megan dynamique 2006

Re: wiring diagram

Postby drewster1978 » Fri Jul 13, 2018 9:24 pm

scooper1000 wrote:Try this hope it works
http://i1383.photobucket.com/albums/ah3 ... hvdlx.jpeg

Thanks very much

grandadbobby
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Re: wiring diagram

Postby grandadbobby » Fri Jul 13, 2018 11:21 pm

That wiring diagram is from the 'almost useful Haynes'
It doesn't mention the pressure switch.
The clutch will work off 12v, the pressure switch will probably be 12v (you could test even with a bulb) but l know so long as it's only 2 wires, you can join them together to bypass the switch.
Bob.

scooper1000
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Re: wiring diagram

Postby scooper1000 » Sat Jul 14, 2018 12:10 am

Thats the only wiring diagram i have...i believe the pressure switch has 3 wires connected to it...new pressure switch only £15 on Ebay, might be worth changing that just to know it aint that...sorry cannot be more help

kush
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Currently Drives:: Megane ii 1.6 VVT

Re: wiring diagram

Postby kush » Sat Jul 14, 2018 9:46 am

I had the same issue a while ago, and it should be the pressure switch. But dont let it fool you even if you replace the pressure switch you have to fix the code on the ECU because its already disabled and even if you replace the switch it wont work until u clear the code(reset ecu).

drewster1978
Learner Driver
Posts: 97
Joined: Mon Mar 20, 2017 9:59 pm
Currently Drives:: renault megan dynamique 2006

Re: wiring diagram

Postby drewster1978 » Sat Jul 14, 2018 5:59 pm

kush wrote:I had the same issue a while ago, and it should be the pressure switch. But dont let it fool you even if you replace the pressure switch you have to fix the code on the ECU because its already disabled and even if you replace the switch it wont work until u clear the code(reset ecu).


I will order a new pressure switch,would that explain the no power to compressor.?Because the machanic said fuse ok.

drewster1978
Learner Driver
Posts: 97
Joined: Mon Mar 20, 2017 9:59 pm
Currently Drives:: renault megan dynamique 2006

Re: wiring diagram

Postby drewster1978 » Sat Jul 14, 2018 6:15 pm

kush wrote:I had the same issue a while ago, and it should be the pressure switch. But dont let it fool you even if you replace the pressure switch you have to fix the code on the ECU because its already disabled and even if you replace the switch it wont work until u clear the code(reset ecu).

How would i reset ecu.?

drewster1978
Learner Driver
Posts: 97
Joined: Mon Mar 20, 2017 9:59 pm
Currently Drives:: renault megan dynamique 2006

Re: wiring diagram

Postby drewster1978 » Sat Jul 14, 2018 6:41 pm

I really appreciate all the help from you guys.............Ive tested compressor via a cable from battery and it spins so thats good,just cant figure out no power,so could i leave the cable on from battery,to bypass fuse box and hope i get cold air.What grade of cable would be best to use,currently i used AUTOMOTIVE 12V 24V 2 CORE TWIN THINWALL RED/BLACK AUTO CABLE.


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